Cranial Nerves.

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Presentation transcript:

Cranial Nerves

Cranial Nerves ___________________ Indicated by Roman numerals I-XII from anterior to posterior May have one or more of 3 functions _______________________________ __________________________________ Parasympathetic (regulation of glands, smooth muscles, cardiac muscle) Fig. 15.24

Cranial Nerves _____________ Optic (II) Oculomotor (III) Trigeminal (V) Facial (VII) ___________________ Also known as auditory Glossopharyngeal (IX) Accessory (XI) Also known as spinal accessory __________________

Mnemonic Aids for Cranial Nerves ______________________________________________________________ Olfactory, Optic, Oculomotor, Trochlear, Trigeminal, Abducens, Facial, Vestibulocochlear, Glossopharyngeal,Vagus, Spinal Accessory (Accessory), Hypoglossal

Mnemonic Aids for Sensory and /or Motor Functions of Cranial Nerves _________________________________________________________________________________ The first letter of each word signifies whether the particular cranial nerve is sensory only (S); motor (M); or both sensory and motor (B)

Cranial Nerves Olfactory (I) Optic (II) Oculomotor (III) _____________ _____________________________________ Parasympathetic (constriction of pupil, movement of lens)

Cranial Nerves Trochlear (IV) Trigeminal (V) Abducens (VI) _________________ Trigeminal (V) Sensory (face, nasal cavity, cheeks, lips, skin of mandible) Motor (_______________________________________________) Abducens (VI) ___________

Cranial Nerves Vestibulocochlear (VIII) Glossopharyngeal (IX) Facial (VII) ______________ _________ (facial muscles, posterior belly of digastric) Parasympathetic (salivary glands, glands of nasal cavity) Vestibulocochlear (VIII) Sensory _____________________ Glossopharyngeal (IX) Sensory __________________________________ Motor (___________________) Parasympathetic (salivary gland, glands of tongue)

Cranial Nerves Accessory (XI) Hypoglossal (XII) Vagus (X) Sensory (taste, back of mouth, larynx, thoracic and abdominal organs) Motor (__________________________) Parasympathetic (thoracic and abdominal organs) Accessory (XI) ____________ (sternocleidomastoid, trapezius) Hypoglossal (XII) Motor _______________